Hi, After adding the domain users as it says to below I can no longer access the web. I get the following error: 403 Forbidden - The ISA Server denies the specified Uniform Resource Locator (URL). (12202) Internet Security and Acceleration Server I am using secureNAT to access the internet. Thanks in advance! Scott PS... I did buy the book! It is the best written text book I have ever bought!!! Site and Content Rules On a stand-alone ISA Server, a default Site and Content Rule is created that allow access to all sites, and all content, at all times, to everyone. You should change this as soon as possible. You can delete this rule, or you can change it to allow Domain Users. If you leave this rule as is, you will have an anonymous access rule, and all Web Proxy clients will use the anonymous access rule first. That is the nature of the HTTP Protocol and there's nothing you can do about it. So, make the change to the default Site and Content Rule.